Questions tagged [volumetrics]
Questions about rendering with volumes (smoke, fog, etc.). Use this tag for both Blender Internal and Cycles.
632
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Rendering problem on a procedural cloud
I created a procedural cloud with this tutorial : https://youtu.be/lCvP917Z8uc, but when I duplicate it to create a "Clouds carpet" the invisible cube from which I created my cloud causes my ...
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How to create a stipple or halftone effect on objects with volume shaders?
I'm trying to create a stipple or halftone effect in Blender on images composed by objects that use volume shaders like these (mostly principled volume shader and playing with emission and density).
...
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Volumetric light causes lights to flicker in eevee
I'm having a problem where the lights on my car (and the area lamp) are flickering when i play the animation. I used a cube with the principled volume settings and the flickering is only caused when ...
CommunityBot
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Blender - Transparency in render broken for areas of a volume
I have a render with transparent film that I ran. When it finished, it appeared completely fine in the Blender render viewer. It has glowing cloud-like parts where I attached an emission shader to the ...
CommunityBot
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Mesh To Volume node rounding concave corners causes unwanted excess blocks
Maybe I'm looking for a workaround if it cannot be solved. Here's the original mesh I want to remesh with my Geo nodes setup. PS: I cannot use the Remesh modifier because it does not support complex ...
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How to fix depth passes vdb issue？
As long as there is a volume object or vdb in the scene, check the Z passes and render, the volume and vdb in the depth passes will have this damaged jagged noise speckled problem, how should I fix ...
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Motion blur rendering not capturing time-dependent shader changes
I'm encountering an issue with motion blur rendering in Blender where time-dependent shader changes are not being captured. Here are the details:
Setup:
I'm using Blender to render an image with ...
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298
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Why isn't my principled volume registering texture inputs - Eevee
So I have been wanting to add animated ground fog to my scene in eevee in Blender 3.0, however I have come across this issue where any texture I add to my Principled volume's density input or emission ...
CommunityBot
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Volumetric Cloud In Eevee not show up
I want to render some volumetric cloud but it not show up
I tried 2 methods in these videos but none working
UPDATE: I tried older version as in video, none of their were working
https://www.youtube....
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Unusual artefacts in volume render
I am using Blender 2.82a (Cycles) to create a fuzzy ball. However I am getting this strange ring of artefacts in the rendered image, where the alpha channel shows through - I am not getting the smooth ...
CommunityBot
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How can I improve my PSX/PS1 fog?
Blender: 3.62
Art Style: PS1/PSX
Game: Ecco The Dolphin: Defender Of The Future
I'm using the Principled Volume Shader on my World Node to achieve a colored fog effect.
It's ok but i have 2 ...
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Using Proximity from Curve to control Volume Shader in Cube
I'm experimenting with the Geometry Proximity node in Geo Nodes, using Blender version 3.2.1. The effect I want to achieve is a volumetric shader within a cube domain that is controlled by the ...
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How to include smoke/fog/volume into mist pass
I'm using mist in this node for compositing
And have run into the problem that a smoke domain using a volume shader is rendered as white
Is there any way to fix that? Or maybe getting the same mist ...
CommunityBot
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How to make mask for material with Volume in compositing?
How to make mask for material with Volume in compositing? I need to change color of clouds, but in scene doesn't produce desired result, so I tried to do it in compositing, but neither ID mask nor ...
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VBD volumes looks transparent (EEVEE)
So far I have not found anwer, VBD volumes looks of course good on Cycles, but i wanna use them for simple stuff on EEVEE, but, most of the times, they barely work or are visible on render, i moved ...
CommunityBot
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I'm creating cigarette smoke using Quick Smoke. Is there a way to make the smoke appear more wispy?
I'm trying to create cigarette smoke using Quick Smoke but it looks too much like a cloud of smoke. Is there a way to make it appear more wispy?
*image is a Cycles render using Blender version 4.02.
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I baked the data for my smoke simulation but the smoke isn't showing up in the viewpart or render. BUT I think the data baked correctly?
I baked the data for my smoke simulation but the smoke isn't showing up. However, the domain appears small and constrained around the dissolve object at the beginning (image 1). After I press play, ...
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VFX explosions and shadowcatchers [duplicate]
I'm attempting to render an explosion to be composited into live action. The explosion is made using Blender's smoke simulation with an emissive volume shader as described in tutorials like this one. ...
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Cant render volume shader in EEVEE at blender 4.2
I'm just simple: create a new file, add a block, set a volume scattering shader for the block, and connect the shader output to the volume.
Then in rendering mode, EEVEE cannot render and the blocks ...
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Blender 4.2 Eevee - Volumetrics show up differently between Viewport, Render and Command Line Render
Basically, I found that there is a major inconsistency in how Volumetrics in Eevee Next are rendered out depending on exactly how you render it out.
At this point I've ruled out running into VRAM ...
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How can I make particles have trails
I am making a jet animation and am trying to make a countermeasure effect, I have an emitter that emits glowing spheres (flares) and I want these flares to have a smoke trail, I tried doing a smoke ...
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Is there any way of manually creating volume grid data?
I would like to know if there is a way of manually creating volume grids. Like the data we obtain from mantaflow simulations or import from external vdb files.
For example, is the creation of volume ...
CommunityBot
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Why can`t I see my object through refractive surface (Cycles)
I am probably missing something very simple. The hdri background can be seen through the water (a simple refractive material), but the object can`t. This is the same for world materials both with or ...
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Final render volumetrics voxel glitches
Got stuck with a problem.
Viewport render volumetrics (cycles) look amazing even on low sample counts after 10 sec render.
Final render on the other hand has this ugly voxel square glitches with 10x ...
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Using volume data from OpenVDB format
I have a voxel volume of CT DICOM data in the Paraview application (screenshot 1), from which I exported in the OpenVDB format.
The CT data is 12 bit single channel grayscale information, I do not ...
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Why the renderded edge of Volume looks dark? [duplicate]
I made a cylinder to hold a Gaussian beam. The intensity is calculated by the equation of the Gaussian beam. And the material is set like this (I make every choosable color to #FF0000):
The max value ...
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Rendering a Volumetric Image
So today I decided to try making a volumetric texture. (I found a mod for Kerbal Space Program that adds custom volumetrics, and I wanted to try making something.) If you're unaware, a volumetric ...
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Direct volume pass as a mask instead of the volume's color
I'm using the volume direct pass for a smoke sim I have but that seems to give me the image of the smoke instead of a mask of where the smoke is and isn't so it becomes a problem when I'm trying to ...
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How can I add "blur" the edges of my volume shader?
I'm trying to create this:
This is my result based on some changes I made to this tutorial:
I'm satisfied but I want a less defined border. I also added lens distortion and fog glare in the ...
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338
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render animation with eevee, volumetric disappear some frames
i have a bug with eevee when i rendering, my volumetric ambiance disappear sometimes without any reason.
I noticed it once a sequence was rendered, some frame, totally random, i haven't my volumetric.
...
CommunityBot
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Making certain lights in scene not react to volumetrics (eevee)?
I have a scene with multiple lights and volumetric fog.
If i want one of my lights not to react to the volumetrics while still lighting my meshes, how can I go about achieving that in Eevee?
Thanks!
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637
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Volumetrics render different in viewport vs final render
When using volume scatter on a massive cube, with an hdr image for lighting, I’m getting wildly different renders between what I see in my viewport vs what I get in my final render.
I thought at ...
CommunityBot
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Reflective water-like smoke shader
I want to make my smoke simulation look like water. How?
I have trouble understanding how to work with volume shaders. Can I somehow convert it to surface?
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How can I create a quantum fluctuation simulation?
I'm trying to replicate this real quantum fluctuations observation using Blender.
So far, I have used Principled Volume and Voronoi texture to create clouds. However, I can't get my head around how ...
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principled Volume is visible in the render result but not in the saved picture
I can see the volume in the render result but when I open the png image in Photos it's invisible
CommunityBot
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Why Won't My Gradient Volume Work?
I'm trying to make a fog that is so thick you can hardly see through it at the bottom, and becoming invisible up top. I've made this setup but for some reason my volume seems to be ignoring my ...
CommunityBot
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Get vdb motion blur in blender (from embergen)
I made a basic fire and smoke simulation in embergen and exported it as a vdb sequence (with the velocity data). When I put it into blender I get three velocity float values instead of one float ...
CommunityBot
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Horizontal lines appear in the cycle render when using principle volume for the material
If I delete the object with principal volume, the Cycle render will work fine.
I tried lowering the volume step rates render to 0.01 and increasing the max sample, but it did not work. How can I get ...
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Volumetric light without fog
I'm using blender 2.8.
I was wondering is there any way to create volumetric light without fog (or just a little bit) ? There are some tutorials on Youtube but almost all of them are creating ...
CommunityBot
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463
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Alpha Volume Scatter Weirdness
I have a volume scatter box (which is fog) which has a principled volume shader on it. I then have this barrel with a png image in front of it, i enabled the alpha... however the volume scatter box is ...
CommunityBot
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Where is the volume step size option in Blender 2.83?
Here is a picture of what I see in the volumes dropdown:
I tried going through all of the dropdowns in the render settings but still, no such luck.
CommunityBot
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How to Apply Transforms to a VDB volume object
I have imported a VDB file and it's orientation is wrong, but when I try to apply the location and rotation after orienting it in right direction, it doesn't work
It gives error - ...
CommunityBot
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Fire VDB is coming from everywhere!
It's quite obvious in the image, that the fire is supposed to be only in the middle of the render, but it's spreading out everywhere, the fire behind is not supposed to be there. I have no idea. It's ...
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Faded Bar on Frame-top in Camera View
I made a new scene. Utilizing a volumetric mesh, transparent node set up (with ambient occlusion nodes), and 3D scans. But in camera, you can see a faint bar going across the top. Mainly seen in the ...
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Volume Absorption is only applied to the "top" of a mesh
I am following the BlenderGuru tutorial of making a cup of coffee, but when I make the coffee liquid using volume absorption, the coffee only appears to absorb light from the top. When I adjust the ...
CommunityBot
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Using image sequence of medical scans as volume data in cycles
I know it's possible to do this in BI, but I need your help to do this in cycles.
For now, I have a setup to use an image sequence as volume but it only shows 1 slice/frame. I'm using generated ...
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How can I achieve a similar indirect illumination like in the cassini image from saturn
On the left you can see my version in Blender, on the right is the original image taken by Cassini from Saturn against the backdrop of the sun.
On the original image the indirect illumination from the ...
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How to have object A attribute influence object B shader parameters
so TL;DR is: How to have obj A geo-node attribute influence obj B's shader parameters?
I have two objects A and B.
A is a curve circle and uses geo-nodes to store its radius as a named attribute.
This ...
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Volume emission and transparent background?
I have a problem with emission volume and transparent background
here is the file https://filebin.net/pm3hmhi3gvtdzxqs
I have a cube with emission volume and a transparent background but when I render ...
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Volume absorption density per color channel
I have a volume with a Volume Absorption node, and the density is based on the distance to the camera (the further away, the denser). But I would like to have a ...
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